To explore the external fixation for treatment of supracondylar femoral fractures after total knee replacement.
From June 2005 to July 2007, 7 cases of supracondylar femoral fracture after total knee ...replacement were treated with external fixation included 4 males and 3 females with an average age of 71 years ranging from 55 to 85 years. The fracture healing were observed and the knee function were evaluated by the HSS scoring.
All patients were followed-up for 6 to 23 months with an average of 12.5 months. The fracture healing time was from 6 to 12 weeks after operation (averaged 8.5 weeks). During the followed-up period, there were no infection and loosening, only one case occurred nail crossing delayed healing of skin. The HSS knee score was (60.6 +/- 16.0) before treatment and (77.6 +/- 11.6) after treatment according to HSS knee score criteria, the results were excellent in 2 cases, good in 4, and fair in 1.
Application of external fixation for treatment of supracondylar femoral fracture after total knee
To discuss the diagnosis and treatment of peripheral nerve injury in the earthquake.
Fourteen patients with peripheral nerve injury injured in the earthquake were involved the retrospective study. ...All cases accepted the timely diagnosis and treatment including anastomosis and repair of the nerve and other conservative treatments. Then the therapeutic effects were observed.
All 14 patients got short-term follow-up and attained the improvement in their symptoms of nerve injury.
Peripheral nerve injury has a high incidence in the earthquake. Prevention is very important. The timely and effective treatment should be taken according to spot situations and traumatic conditions of casualties in earthquake.
To discuss the diagnosis and treatment of the crush syndrome in the earthquake.
Thirty-five patients with crush syndrome caused by earthquake were involved the retrospective study. The role of ...nutritional support, active wound treatment and hemodialysis on the patients' recovery was observed.
The function of the heart and kidneys were gradually improved by the planned removal of the necrotic tissue, which laid a foundation for the further repair of the wound.
The removal of necrotic tissue, which can decrease the toxic absorption, will improve the success rate for treatment of the crush syndrome patients when being assisted with the hemodialysis.
To design ABC damage variable and positioning system for acetabular fracture and explore the feasibility and clinical practical value of the system through the multi-center analysis of 1122 ...acetabular fractures.
According to acetabular three-column conception, and pelvic ring lesions damage direction caused by acetabular fracture domino effect and injury degree of proximal femur joint, it defined class A as any column acetabular fracture; class B as any two-column acetabular fracture; class C as front, dome and posterior mixture acetabular fracture. Lower case English letters a, m, p represented front, dome, posterior fracture, respectively. Acetabular damage variables: 1 was simple displaced fractures; 2 was comminuted fractures; 3 was compression fractures. Pelvic ring lesions damage variables: alpha was sacroiliac joints or sacroiliac fracture horizontal separation deflection; beta was sacroiliac joints or sacroiliac fracture vertical separation deflection; gamma was pubic symphysis separation/superior and
To explore the therapeutic strategies of the aged wounded patients evacuated from Wenchuan earthquake area.
The characteristics of traumatic conditions and therapeutic methods of 14 aged wounded ...patients evacuated from Wenchuan earthquake area were retrospectively analyzed.
All cases accepted the effective treatment for 4 to 8 weeks and attained good recovery. There was no anesthetic and surgical complications, deep venous thrombosis, hypostatic pneumonia, pulmonary embolism, bed sore, stroke and other complications happened. When discharged, all medical disorders of the patients were under control and both psychological condition and nutritional status were improved obviously.
Assessment of traumatic condition and general status,cooperative nursing, active nutritional support, positive symptomatic treatment and necessary psychological intervention are the key to improve effectively the curative effect of the aged wounded patients in earthquake.
To investigate and analyze the traumatic conditions on the casualties evacuated from Wenchuan earthquake area.
Traumatic conditions of 34 patients evacuated to Changhai hospital were investigated. ...Meanwhile, classification of traumatic conditions and therapeutic methods was analyzed.
By organized emergency medical treatment,classification and transmission of casualties, selected application of external fixation,active repair of soft tissue injury, positive psychological assessment and intervention, healing rate was efficiently rasied and complications were decreased.
The summary of traumatic conditions and therapeutic experiences on wounded people of Wenchuan earthquake area can provide the primary basis and treatment methods for the wounded people with earthquake injury.
Scopolamine hydrobromide (SH)-loaded microparticles were prepared from a colloidal fluid containing ionotropic-gelated chitosan nanoparticles using a spray-drying method. The spray-dried ...microparticles were then formulated into orally disintegrating tablets (ODTs) using a wet granulation tablet formation process. A drug entrapment efficiency of about 90% (w/w) and loading capacity of 20% (w/w) were achieved for the microparticles, which ranged from 2 μm to 8 μm in diameter. Results of disintegration tests showed that the formulated ODTs could be completely dissolved within 45 seconds. Drug dissolution profiles suggested that SH is released more slowly from tablets made using the microencapsulation process compared with tablets containing SH that is free or in the form of nanoparticles. The time it took for 90% of the drug to be released increased significantly from 3 minutes for conventional ODTs to 90 minutes for ODTs with crosslinked microparticles. Compared with ODTs made with noncrosslinked microparticles, it was thus possible to achieve an even lower drug release rate using tablets with appropriate chitosan crosslinking. Results obtained indicate that the development of new ODTs designed with crosslinked microparticles might be a rational way to overcome the unwanted taste of conventional ODTs and the side effects related to SH's intrinsic characteristics.
From August 1990 to December 2007, 156 patients with humeral shaft nonunion were treated with our patented Ni-Ti shape memory alloy swan-like memory pressure connector (SMC). The SMC device cooled ...with ice before implantation was warmed to 40–50°C after implantation to produce balanced axial and compression forces to stabilise the fracture three-dimensionally. This combined with autologous bone grafting achieved bone tissue regeneration in the fracture and promoted smooth recovery of joint function, with a nonunion healing rate of 98.7% after a single SMC implantation. Failure of nonunion healing occurred in only two cases but was successfully managed by a further operation. Complications were not found in any of these patients apart from four with pre-existing radial nerve injuries. These results demonstrate the effectiveness of the SMC device for the management of humeral shaft nonunion. The device provides continuous compression of the fracture with minimal trauma to the local blood supply.
Objective： To explore the mechanical behavior of lumbar spine loaded by stress and provide the mechanical basis for clinical analysis and judgement of lumbar spine fracture classification, mechanical ...distribution and static stress. Methods： By means of computer simulation method, the constructed lumbar spine three-dimensional model was introduced into three-dimensional finite element analysis by software Ansys 7.0. The lumbar spine mechanical behavior in different parts of the stress loading were calculated. Impact load is 0-8000 N. The peak value was 8000 N. The loading time is 0-40 minutes. The values of the main stress, stress distribution and the lumbar spine unit displacement in the direction of main stress were analyzed. Results： The lumbar spine model was divided into a total of 121 239 nodes, 112 491 units. It could objectively reflect the true anatomy of lumbar spine and its biomechanical behavior and obtain the end-plate images under different stress. The stress distribution on the lumbar intervertebral disc （L3-L4） under the axial, lateral flexion and extension stress, and the displacement trace of the corresponding processus articularis were analyzed. Conclusion： It is helpful to analyze the stress distribution of lumbar spine and units displacement in static stress loading in the clinical research of lumbar spine injury and the distribution of internal stress.
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